Blood-transfusion apparatus



June 5, 1923. 1,457,796

M. C. PRUITT BLOOD TRANSFUSION APPARATUS Filed May 25, 1920 Queuing I thus "the operation can be Patented June 5, 1923. I

" m s harm IL M en I" 'ianoon-rnnnsrusionfnrrhnntrusf"' T 0 all whom z't may concern) Be T it I known that I, -Mnnron 1 G3 PRUITT, a citizen of the United' States, residing at Atlanta, in the county of Fu'lton and State of Georgia, have invented'new and useful Improvements in Blood-Transfusion Apparatus, of which the following is a specification. i a v.- I This invention rel'ates generally to appa-.

ratus for the transfusion of blood, but itirelates more particularly to a receptacle to beused in the indirect method of blood transfusionas a container forthe blood to 'be transferred; 1

Ordinarily, in the prevalent-methodof blood transfusion as carried on between two persons, the transfer is-elfectedby.,filling a syringe with blood-fromthe. donorand injecting it into the recipient, this process being repeateduntil' the desirediamount has been transferred. This method is considered disadvantageous, in that theextraction of the blood from thedonor must be immecliately followed by its injection into the recipient in orde'rftoobtain-the best results, and, such transfer usually requires the attention of two physicians. 7 My invention provides a receptacleor container into which the blood extracted from the donor is placed and kept 1n perfectlcondition and at the desired temperature; for

- a certain time, so that the completed transfer need not be reflected immediately, and

efficiently performed by one physician.

An'important object of the invention to provide :a receptacle of the character :de-

scribed, which is simple-and practical in construction, and: which maybe manufactured at a reasonable'costl V Another object of the invention 'is to; provide a neat compact receptacle having means for readily attaching. thereto a discharge tube, and a compartment for containing the tubing in coiled form when not in use, a suitable cap being provided for closing the compartment and retaining the coiled tubing therein.

A further object of this invention is the provision of an apparatus foruse in connec-' tion with the transfusion of blood from one person to another, susceptible of a varied use for intravenous injections of fluids into the body, so designed that thefluid to be transferred may be maintained at a desired temperature; preferably constructed of glass or "like transparent element softhat the fluid withinthecontainerlmay be vis-- ---With 'thesera'nd other'objects view,

:which will becomeapp'a-rent a'sthe descrip tion proceeds, the; inventionresides in the construction, comblnation and arrangement :ible, andv so -graduated-that the course of v i the transfusion may'at all times be accurately observedrof; parts, hereinafter more fully- 1 described and claimecLpandillustrated inthe' accom-,'-

theseveral figures,of which-z v Fig. 1 IS a side elevation of-a,lreceptacle" v constructed. -1n accordance with my inven m .7 1

-Fig; 2 is a vertical sectional view showing theinterior construction; and." a

forming the taining theflcontents of the inner compartment at the proper temperature. Both compartments are providedat-the top withinlet openings normally closed by suitable, caps.

' The inner; compartment is formed at .thebot- .tom with a discharge; outlet toireceive a discharge :tube. I-ngorder to accommodate, f the .tube whenfcoiled and notin'use 'a'comapartment closed by an appropriate, cap j is formed. aroundthe 'discharge outlet, as clearly shown in- -Fig. 2 of the drawings.

Referringrmoreparticularly to the draw-v panying drawings, in which like characters 'of reference indicatellikeparts throughout ing's, the referencenumeral 1 'designates a cylindrical outershell provided a slight dis tance above itsilowerj end with a bottom wall 2 having a central aperturev 3, and a depending externally threaded "neck 4: sur

roundingsaid aperture '3. Rising from the bottom wall 2 and concentrically surroundmg the aperture 3 is an inner cylindrical shell 5 spaced from the surrounding shell 1 to effect an intervening annularKcompart-,

ment 6 into which'the hot" water or other heated fluid maybe introduced.- As shown, the inner shell 5 is madeof such height that the upper end thereof/projects upwardly beyond;the upper end of the shell 1, and 1 this projecting end is externally threaded as I at 7 to receivethe correspondingly threaded cap 8. I I

The annular compartment 6 is closed at the top by a wall portion 9 which extends,

between the shell 5, immediately below the threaded portion 7 of said wall, and the upper annular edge of the outer shell 1. The said wall portion9 is provided with an inlet opening 10 and an outwardly extending neck 11, externally threaded as at- 12 to receive thereon a cap 13. i f

Owing to the location of the bottom wall 2 above the lower end of the shell 1, a compartment 14 is provided beneath said bottom wall into which the discharge neckt eX- tends. A suitable dischargetube 15 has one end attached to the neck 41, and when not in use may be coiled about the discharge neck :and entirely contained within the compartment 14, and retained in such position by the internally threaded cap 16. The flow o'f'liquid throu h flexible. conduit or tubel5 may be controfied by any suitable regulating means.

In practice, the fluid to be transferred is introduced into the inner shell 5 and sealed therein by cap 8, said cap forming an air tight closure to prevent the formation of air bubbles in the liquid, which are dangerous in intravenous injections. The heating fluid such as hot water for maintaining the contents of the inner compartment at the proper temperature is introduced into the outer compartment 6 through inlet opening 10 and sealed therein by cap 13.

From the foregoing it is apparent that I have designed a fluid transfusion apparatus of great adaptability, eliminating many deficiencies of those now in. use, efficient in operation, simple in construction, and inexcompartment, an inner shell rising from said bottom wall in spaced relation to the outer shell and projecting above the upper end of said outer shell, a closure for the projecting end of said outer shell.

2. A transfusion receptacle, embodying a blood chamber having its bottom formed with an outlet opening and its top open and adapted to be closed with a removable cap,

I an offset jacket surrounding the blood chamber and forming a sealed compartment adapted to receive a heating agent, the walls of the jacket being extended below the bottom of-the blood container and externally threaded to receive a cap, the latter when in position forming a housing for the discharge tubing, and a normally closed inlet port communicating with the sealed compartment to effect its replenishment.

3. A transfusion receptacle of the char acter described embodying a cylinde'rical I shell having top and bottom walls, the bottom wall being set inwardly from the end of the cylinder to provide a housin ner. cylindrical shell integral with the .said set-in wall and extending longitudinally of the outer shell with its outer end penetrating the'opposite-or top wall of the outer shell, said inner and outer shells being relat-ively spaced to provide a compartment therebetween, said top wall presenting an inlet-to the said compartment and the said bottom wall presenting an outlet for the said inner shell, a discharge tube connected with the outletof-the said inner shell, and

closure means atopposite ends of the shells.

one of said closure means being engageable with said housing for confining therein the discharge tube when not in use.

May 22, 1920.

MARION c. PRUITT 

